The registered nurse is discussing care of an infant diagnosed with a patent ductus arteriosus (PDA) with a nursing student. The registered nurse determines that the nursing student needs further teaching regarding a PDA when the student states that which circulatory change is a characteristic of this disorder?
This shunting allows oxygenated and unoxygenated blood to mix.
Blood is shunted to the right side of the heart.
This shunting results in increased pulmonary blood flow.
Blood is shunted to the left side of the heart.
The Correct Answer is D
A. "This shunting allows oxygenated and unoxygenated blood to mix."
Explanation: This statement is correct. In PDA, the shunting of blood between the aorta and pulmonary artery allows oxygenated and unoxygenated blood to mix, leading to decreased oxygen saturation in the systemic circulation.
B. "Blood is shunted to the right side of the heart."
Explanation: This statement is correct. In PDA, blood is shunted from the left side of the heart (aorta) to the right side of the heart (pulmonary artery).
C. "This shunting results in increased pulmonary blood flow."
Explanation: This statement is correct. PDA leads to increased pulmonary blood flow as a result of the shunting of blood from the aorta to the pulmonary artery.
D. "Blood is shunted to the left side of the heart."
Explanation:
A patent ductus arteriosus (PDA) is a congenital heart defect where the ductus arteriosus, a fetal blood vessel that normally closes shortly after birth, remains open. In PDA, blood is shunted from the aorta (left side of the heart) to the pulmonary artery (right side of the heart), resulting in increased pulmonary blood flow. Therefore, the correct statement is that "Blood is shunted to the right side of the heart."
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. A highly pruritic profuse macule to papule rash on the trunk.
Explanation: This description does not align with the typical presentation of erythema infectiosum. The rash in fifth disease is not highly pruritic, and the initial characteristic is the "slapped face" appearance.
B. A discrete pinkish red maculopapular rash that is spreading to the trunk.
Explanation: While erythema infectiosum can involve a discrete rose-pink maculopapular rash on the trunk and limbs, the key initial characteristic is the "slapped face" appearance.
C. An erythema on the face that has a "slapped face appearance."
Explanation:
Erythema infectiosum, caused by the parvovirus B19, is commonly known as fifth disease. The initial rash often presents with a distinctive "slapped face" appearance, characterized by erythema (redness) on the cheeks, resembling a slapped appearance. Subsequently, a discrete rose-pink maculopapular rash may develop on the trunk and limbs.
D. A discrete rose-pink maculopapular rash on the trunk.
Explanation: This description aligns with the later stages of the rash in erythema infectiosum. However, the initial characteristic is the "slapped face" appearance on the face.
Correct Answer is C
Explanation
A. Crayons and a coloring book:
Incorrect: Crayons and coloring books may not be appropriate for a 12-month-old, as they may pose a choking hazard. Additionally, they might require more direct contact, which may not be ideal under contact precautions.
B. Modeling clay:
Incorrect: Modeling clay may also pose a choking hazard for a toddler. Moreover, it can be messy and may not be suitable for use in a hospital room with contact precautions.
C. Hanging crib toys.
Correct Answer: Hanging crib toys can provide visual and tactile stimulation for the toddler without the need for direct contact. These toys can be attached to the crib, allowing the child to engage with them safely.
D. Large building blocks:
Incorrect: While large building blocks can be suitable for a toddler's developmental needs, they may not be the best option in a confined hospital room under contact precautions. The child's access to and handling of the blocks may be limited in this setting.
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